schematic table

Hello , i write I wrote an essay,. Would you like to help me modify it? Thank you very much!
From the chart below, we can easily know see that the UK telephone calls have a different variation tendency . On the whole , the sum of minutes is rising .
By categories , it is obvious that local fixed line is increasing smoothly ,as the time goes by , and in 1999 , the minutes of local calls get a maximum of more than 90 . After this year, the minutes of local fixed line is dropping . By contrast , the national and international fixed line has a rising tendency as the time going over time, and especially, the minutes of that, which in 2002, reaches 60 . We can predict that the national and international fixed line will play a an important role after 2002.
Meanwhile, as the world 's economy is developing rapidly , meanwhile , the minutes of mobile calls is rising perpendicularly [not sure what that means. ?exponentially?]. From 1995 to 2002 , the minutes of mobile calls is through 4 become 40 goes from 4 to 40, and the number in 2002 is 10 times that of 1995 .
So by compare comparison with the 3 categories about of UK telephone calls , we can conclude make a conclusion that the whole number is booming , and in the future ,the number of mobile calls will catch up with the another two types , and maybe one day will become the most biggest power in majority of telephone calls .